books.google.com.au - The most bitter guerrilla conflict in American history raged along the Kansas-Missouri border from 1856 to 1865, making that frontier the first battleground in the struggle over slavery. That fiercely contested boundary represented the most explosive political fault line in the United States, and its...https://books.google.com.au/books/about/The_Border_Between_Them.html?id=fZN6xGN-5J4C&utm_source=gb-gplus-shareThe Border Between Them